Stepping exerciser



FIG. 1 is a perspective view of a stepping exerciser;

FIG. 2 is a left side elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a front elevational view;

FIG. 5 is a right side elevational view;

FIG. 6 is a bottom elevational view; and,

FIG. 7 is a rear elevational view.

The ornamental design for a stepping exerciser, as shown.